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authorKONRAD Frederic <fred.konrad@greensocs.com>2013-04-23 11:08:40 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2013-04-23 10:37:49 -0500
commite7303c43031302279ee7b5d6ea7031bf81e2e2d9 (patch)
tree53b4c847e18f8a8fc5ae179c125a5da8adb0a70c /hw
parent93b971c4ff0881349d4fa5a1394cc3d6faf351c3 (diff)
virtio-9p: add the virtio-9p device.
Create virtio-9p-device which extends virtio-device, so it can be connected on virtio-bus. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Message-id: 1366708123-19626-2-git-send-email-fred.konrad@greensocs.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw')
-rw-r--r--hw/9pfs/virtio-9p-device.c73
-rw-r--r--hw/9pfs/virtio-9p.h9
-rw-r--r--hw/virtio/virtio-pci.c3
3 files changed, 76 insertions, 9 deletions
diff --git a/hw/9pfs/virtio-9p-device.c b/hw/9pfs/virtio-9p-device.c
index b476b810c5..7f00a45f3b 100644
--- a/hw/9pfs/virtio-9p-device.c
+++ b/hw/9pfs/virtio-9p-device.c
@@ -46,19 +46,30 @@ static void virtio_9p_get_config(VirtIODevice *vdev, uint8_t *config)
g_free(cfg);
}
-VirtIODevice *virtio_9p_init(DeviceState *dev, V9fsConf *conf)
+static VirtIODevice *virtio_9p_common_init(DeviceState *dev, V9fsConf *conf,
+ V9fsState **ps)
{
- V9fsState *s;
+ V9fsState *s = *ps;
int i, len;
struct stat stat;
FsDriverEntry *fse;
V9fsPath path;
- s = (V9fsState *)virtio_common_init("virtio-9p",
- VIRTIO_ID_9P,
- sizeof(struct virtio_9p_config)+
- MAX_TAG_LEN,
- sizeof(V9fsState));
+ /*
+ * We have two cases here: the old virtio-9p-pci device, and the
+ * refactored virtio-9p.
+ */
+
+ if (s == NULL) {
+ s = (V9fsState *)virtio_common_init("virtio-9p",
+ VIRTIO_ID_9P,
+ sizeof(struct virtio_9p_config)+
+ MAX_TAG_LEN,
+ sizeof(V9fsState));
+ } else {
+ virtio_init(VIRTIO_DEVICE(s), "virtio-9p", VIRTIO_ID_9P,
+ sizeof(struct virtio_9p_config) + MAX_TAG_LEN);
+ }
/* initialize pdu allocator */
QLIST_INIT(&s->free_list);
QLIST_INIT(&s->active_list);
@@ -136,3 +147,51 @@ VirtIODevice *virtio_9p_init(DeviceState *dev, V9fsConf *conf)
return &s->vdev;
}
+
+VirtIODevice *virtio_9p_init(DeviceState *dev, V9fsConf *conf)
+{
+ V9fsState *s = NULL;
+ return virtio_9p_common_init(dev, conf, &s);
+}
+
+/* virtio-9p device */
+
+static int virtio_9p_device_init(VirtIODevice *vdev)
+{
+ DeviceState *qdev = DEVICE(vdev);
+ V9fsState *s = VIRTIO_9P(vdev);
+ V9fsConf *fsconf = &(s->fsconf);
+ if (virtio_9p_common_init(qdev, fsconf, &s) == NULL) {
+ return -1;
+ }
+ return 0;
+}
+
+static Property virtio_9p_properties[] = {
+ DEFINE_VIRTIO_9P_PROPERTIES(V9fsState, fsconf),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void virtio_9p_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
+ dc->props = virtio_9p_properties;
+ vdc->init = virtio_9p_device_init;
+ vdc->get_features = virtio_9p_get_features;
+ vdc->get_config = virtio_9p_get_config;
+}
+
+static const TypeInfo virtio_device_info = {
+ .name = TYPE_VIRTIO_9P,
+ .parent = TYPE_VIRTIO_DEVICE,
+ .instance_size = sizeof(V9fsState),
+ .class_init = virtio_9p_class_init,
+};
+
+static void virtio_9p_register_types(void)
+{
+ type_register_static(&virtio_device_info);
+}
+
+type_init(virtio_9p_register_types)
diff --git a/hw/9pfs/virtio-9p.h b/hw/9pfs/virtio-9p.h
index 95a8ec3ba9..767f7e66b5 100644
--- a/hw/9pfs/virtio-9p.h
+++ b/hw/9pfs/virtio-9p.h
@@ -225,6 +225,7 @@ typedef struct V9fsState
CoRwlock rename_lock;
int32_t root_fid;
Error *migration_blocker;
+ V9fsConf fsconf;
} V9fsState;
typedef struct V9fsStatState {
@@ -401,4 +402,12 @@ extern int v9fs_name_to_path(V9fsState *s, V9fsPath *dirpath,
#define pdu_unmarshal(pdu, offset, fmt, args...) \
v9fs_unmarshal(pdu->elem.out_sg, pdu->elem.out_num, offset, 1, fmt, ##args)
+#define TYPE_VIRTIO_9P "virtio-9p-device"
+#define VIRTIO_9P(obj) \
+ OBJECT_CHECK(V9fsState, (obj), TYPE_VIRTIO_9P)
+
+#define DEFINE_VIRTIO_9P_PROPERTIES(_state, _field) \
+ DEFINE_PROP_STRING("mount_tag", _state, _field.tag), \
+ DEFINE_PROP_STRING("fsdev", _state, _field.fsdev_id)
+
#endif
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index c1e9a60905..787f5fd843 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -1040,8 +1040,7 @@ static Property virtio_9p_properties[] = {
DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features),
- DEFINE_PROP_STRING("mount_tag", VirtIOPCIProxy, fsconf.tag),
- DEFINE_PROP_STRING("fsdev", VirtIOPCIProxy, fsconf.fsdev_id),
+ DEFINE_VIRTIO_9P_PROPERTIES(VirtIOPCIProxy, fsconf),
DEFINE_PROP_END_OF_LIST(),
};